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Finding the Fourth Proportional to 72,861.80, 100,547.30 and 41,030.01

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Solution

The fourth proportional to 72,861.80, 100,547.30 and 41,030.01 is: 56,620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,861.80 : 100,547.30 = 41,030.01 : x
  2. Step 2: Convert to fraction form
    72,861.80/100,547.30 = 41,030.01/x
  3. Step 3: Cross multiply
    72,861.80x = 100,547.30 × 41,030.01
  4. Step 4: Simplify right side
    72,861.80x = 4,125,456,519.32
  5. Step 5: Solve for x
    x = 4,125,456,519.32/72,861.80
  6. Step 6: Final answer
    x = 56,620.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.